Trap for plumbing installations



FIG. 1 is a front view of a trap for plumbing installations showing my new design;

FIG. 2 is a right side view thereof.

FIG. 3 is a left side view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a top plan view thereof.

FIG. 6 is a perspective view taken from the top, rear and right side thereof. 

The ornamental design for a trap for plumbing installations, substantially as shown and described. 